This is not an issue in Wheezy with aufs.
purgatory:~# find /proc/self/exe -ls 897320 0 lrwxrwxrwx 1 root root 0 Sep 18 16:57 /proc/self/exe -> /usr/bin/find purgatory:~# grep usr /proc/mounts /dev/mapper/nyso-usrext /run/shm/26975/usr ext4 rw,noatime,errors=remount-ro,user_xattr,acl,barrier=1,data=ordered 0 0 /dev/mapper/nyso-usrext /run/shm/26975/usr ext4 rw,noatime,errors=remount-ro,user_xattr,acl,barrier=1,data=ordered 0 0 /dev/mapper/nyso-nuusr26975.rw /.usr.rw ext4 rw,relatime,user_xattr,barrier=1,data=writeback 0 0 /dev/mapper/nyso-nuusr26975.ro /.usr.ro squashfs ro,relatime 0 0 none /usr aufs rw,relatime,si=558584e1 0 0 purgatory:~# uname -a Linux purgatory.mikemestnik.net 3.2.0-3-686-pae #1 SMP Mon Jul 23 03:50:34 UTC 2012 i686 GNU/Linux purgatory:~# lsb_release -a No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux testing (wheezy) Release: testing Codename: wheezy
This is not an issue in Wheezy with aufs.
purgatory:~# find /proc/self/exe -ls nyso-usrext /run/shm/26975/usr ext4 rw,noatime, errors= remount- ro,user_ xattr,acl, barrier= 1,data= ordered 0 0 nyso-usrext /run/shm/26975/usr ext4 rw,noatime, errors= remount- ro,user_ xattr,acl, barrier= 1,data= ordered 0 0 nyso-nuusr26975 .rw /.usr.rw ext4 rw,relatime, user_xattr, barrier= 1,data= writeback 0 0 nyso-nuusr26975 .ro /.usr.ro squashfs ro,relatime 0 0 si=558584e1 0 0 mikemestnik. net 3.2.0-3-686-pae #1 SMP Mon Jul 23 03:50:34 UTC 2012 i686 GNU/Linux
897320 0 lrwxrwxrwx 1 root root 0 Sep 18 16:57 /proc/self/exe -> /usr/bin/find
purgatory:~# grep usr /proc/mounts
/dev/mapper/
/dev/mapper/
/dev/mapper/
/dev/mapper/
none /usr aufs rw,relatime,
purgatory:~# uname -a
Linux purgatory.
purgatory:~# lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description: Debian GNU/Linux testing (wheezy)
Release: testing
Codename: wheezy